VOLVO
ICM-U001048 - Medium Speed CAN Communication Bus. System Internal Failures. Supervision software failure
System
Infotainment Control Module (ICM)
Volvo models this fault code applies to
Applies to the following models:
9 modelsS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Show models by year and engine (9)
What does this fault code mean?
The infotainment control module (ICM) checks its communication with the central electronic module (CEM) on the medium-speed CAN bus. The code is set when the monitoring software for that communication fails, or when the communication cannot be started in ICM. The fault therefore lies in the infotainment control module itself.
Possible causes
- Internal fault inside the ICM unit
What you can do
- 1With a diagnostic tool, read the fault codes in the other modules. If lost-communication codes appear in several modules, work through them first, starting with the central electronic module (CEM)
- 2Clear the fault code and drive the car for a while to see whether it returns
- 3Check that the CAN connectors are firmly seated and free from oxidation, and look for chafed wires
- 4If the fault remains and no other module has CAN codes, a workshop should load the latest software. If that fails, the module needs replacing
Symptoms you may notice2
- Infotainment functions do not work
- The audio unit (complete) does not work
General guidance for car owners. Diagnosis on the car can point to a different cause.